The antibacterial chemical triclosan is a common component in personal care products but recently the subject of many reports concerning environmental toxicity and health impacts. Although triclosan concentration in a soap can be determined simply via high-performance liquid chromatography, this is a technique not routinely available in the…

It is critical that we understand and address features of learning environments that encumber students historically underrepresented in STEM fields. Here we consider social elements of group work that can either support or impede learning. We tracked gender-bias in student--teaching assistant (TA) interactions in 184 small groups across 27…

We present a collection of hands-on experiments that collectively teach precollege students fundamental concepts of polymer synthesis and characterization. These interactive experiments are performed annually as part of an all-day outreach event for high school students that can inform the development of ongoing polymer education efforts in a…

Instruction in hematopathology at Mayo Medical School has evolved from instructor-guided direct inspection under the light microscope (laboratory method), to photomicrographs of glass slides with classroom projection (projection method). These methods have not been compared directly to date. Forty-one second-year medical students participated in…

St. Olaf College recently added a Mathematical Biology concentration to its curriculum. The core course, Mathematics of Biology, was redesigned to include a wet laboratory. The lab classes required students to collect data and implement the essential modeling techniques of formulation, implementation, validation, and analysis. The four labs…

An instrumentation-based laboratory curriculum combining traditional unknown analyses with student-designed projects has been developed for an introductory analytical chemistry course. In the first half of the course, students develop laboratory skills and instrumental proficiency by rotating through six different instruments performing…

This study assessed the impact of science teaching laboratories designed with visual connections to spaces outside the laboratory, either to interior spaces or to the outdoors. Specifically, we assessed (1) student perceptions of interdisciplinarity, (2) the ability to stay focused, and (3) the environment for student learning. Student surveys…

Increasing emphasis on leadership in medical education has created a need for developing accurate evaluations of team leaders. Our study aimed to compare the accuracy of self- and peer evaluation of student leaders in the first-year Human Structure block (integrated gross anatomy, embryology, and radiology). Forty-nine first-year medical students…

Research has shown that certain ways of teaching can make a difference in whether students learn standards-based content. Many strategies have proven to be effective in teaching literacy, mathematics, science and social studies. These strategies have facilitated blending academic and career/technical subjects to make learning more meaningful for…

This project entailed a three-year efficacy evaluation of the Computer and Team Assisted Mathematical Acceleration (CATAMA) Lab developed by the Center for Social Organization of Schools at Johns Hopkins University. The CATAMA Lab was proposed as an immediate and practical approach to addressing the different types of math deficits held by…

In this article, the author relates the history of one of the first two-year college writing laboratories in the country, the University of Minnesota General College Writing Laboratory, created in 1932. This writing laboratory was a setting in which a student could write "things which he wishes to write in answer to natural demands"…

AN EXPERIMENT WAS CONDUCTED TO DETERMINE THE EFFECT OF PHONEME DISCRIMINATION TRAINING UPON THE ABILITY OF SUBJECTS TO DISCRIMINATE AMONG FRENCH PHONEMES AND TO DISCRIMINATE FRENCH PHONEMES FROM THEIR ENGLISH NEAR-EQUIVALENTS, TO IMITATE THE PRONUNCIATION OF FRENCH PHONEMES, AND TO MAKE VALID JUDGMENTS OF THEIR OWN PRONUNCIATION. THREE GROUPS OF…

THE SPONTANEOUS BEHAVIOR OF A TEACHER AND HOW THIS BEHAVIOR AFFECTS LEARNING IN THE CLASSROOM WERE INVESTIGATED. INDEPENDENT VARIABLES IN THE STUDY WERE DIRECT TEACHER INFLUENCE, AND THE NATURE OF THE SPECIFIC LEARNING TASK. THE DEPENDENT VARIABLES WERE THE ACTUAL MEASURES OF LEARNING, INCLUDING AWARENESS OF FACTS, APPLICATION OF PRINCIPLES TO…

A description of the modular scheduling practices in the foreign language programs of the White Bear Lake, Minnesota secondary schools includes information on its general design, advantages, and problems. Following discussions of arrangements for scheduling, student-teacher contact time, classroom activities, more individualized instruction,…